Electronic component arrangement comprising a varistor and a semiconductor component

Abstract

An electric component arrangement is described, comprising a semiconductor component ( 1 ) and a varistor body ( 2 ), which is contact-connected to the semiconductor component in order to protect the latter against electrostatic discharges. The semiconductor component and the varistor body are arranged on a common carrier ( 3 ) containing a highly thermally conductive ceramic.

1. An electric component arrangement, comprising:
 a semiconductor component; and 
 a varistor body contact-connected to the semiconductor component to protect the semiconductor component against electrostatic discharges; 
 wherein the semiconductor component is arranged on a common carrier containing a thermally conductive ceramic, and the semiconductor component and the varistor body are arranged separately from one another on the common carrier; 
 wherein the varistor body contains a composite material composed at least of a varistor ceramic as matrix and a highly thermally conductive material as filler. 
 
     
     
       2. The component arrangement as claimed in  claim 1 , wherein the thermally conductive ceramic of the carrier comprises at least one of the materials aluminum nitride, gallium nitride, silicon carbide, hafnium oxide, manganese oxide. 
     
     
       3. The component arrangement as claimed in  claim 1 , wherein the carrier contains the thermally conductive ceramic as matrix and a metal as filler. 
     
     
       4. The component arrangement as claimed in  claim 1 , wherein the carrier comprises a plate. 
     
     
       5. The component arrangement as claimed in  claim 1 , wherein the carrier includes conductor tracks that are electrically decoupled from one another. 
     
     
       6. The component arrangement  claim 5 , wherein the semiconductor component and the varistor body are contact-connected to the conductor tracks. 
     
     
       7. The component arrangement as claimed in  claim 5 , wherein the varistor body includes external electrical contacts on its side facing the carrier, which make contact with at least one conductor track. 
     
     
       8. The component arrangement as claimed in  claim 1 , wherein the varistor body is connected in parallel with the semiconductor component. 
     
     
       9. The component arrangement as claimed in  claim 1 , wherein the varistor body includes at least one internal electrode. 
     
     
       10. The component arrangement as claimed in  claim 1 , wherein the varistor body includes at least one external electrical contact and at least one internal electrode, wherein the internal electrode is connected to the external contact by at least one plated through-hole. 
     
     
       11. The component arrangement as claimed in  claim 1 , wherein the carrier with the semiconductor component mounted on it and the varistor body is integrated in a housing, wherein the housing includes a thermally conductive region which is connected to the carrier and which is thermally coupled to the carrier. 
     
     
       12. The component arrangement as claimed in  claim 1 , wherein the varistor body comprises a monolithic multilayer varistor. 
     
     
       13. The component arrangement as claimed in  claim 1 , wherein the semiconductor component is chosen from the components: optoelectronic component, LED, capacitor, multilayer capacitor, thermistor, multilayer thermistor, diode, amplifier. 
     
     
       14. The component arrangement as claimed in  claim 1 , further comprising:
 a thermistor which contributes, in a manner dependent on its resistance/temperature characteristic curve, to regulation of a control current of the semiconductor component. 
 
     
     
       15. An electric component arrangement, comprising:
 a semiconductor component; and 
 a varistor body contact-connected to the semiconductor component to protect the semiconductor component against electrostatic discharges; 
 wherein the semiconductor component and the varistor body are arranged on a common carrier containing a thermally conductive ceramic as a matrix and a metal as a filler. 
 
     
     
       16. An electric component arrangement, comprising:
 a semiconductor component; and 
 a varistor body contact-connected to the semiconductor component to protect the semiconductor component against electrostatic discharges, the varistor body containing a composite material composed at least of a varistor ceramic as a matrix and a highly thermally conductive material as a filler; 
 wherein the semiconductor component and the varistor body are arranged on a common carrier containing a thermally conductive ceramic.